How To Replace Drain Pipes Under Bathroom Sink

How to Replace Drain Pipes Under a Bathroom Sink

Replacing drain pipes under a bathroom sink is a relatively simple plumbing task that can be completed in a few hours. By following these steps, you can save yourself the cost of hiring a plumber.

Materials You'll Need:

New drain pipes
Pliers
Wrench
Bucket
Flashlight
Caulk gun

Step 1: Turn Off the Water Supply

Before starting any work, turn off the water supply to the sink. There will be two valves under the sink, one for the hot water and one for the cold water. Turn both valves clockwise to close them.

Step 2: Remove the Old Drain Pipes

Place the bucket under the sink to catch any water that may leak out. Use the pliers to loosen the nuts that hold the old drain pipes in place. Once the nuts are loose, you can remove the pipes by hand.

Step 3: Clean the Drain Hole

Once the old drain pipes are removed, use a flashlight to inspect the drain hole. Clean out any debris or gunk that may have accumulated. You can use a wire brush or a wet rag to clean the hole.

Step 4: Install the New Drain Pipes

Apply a bead of caulk around the base of the new drain pipes. Insert the pipes into the drain hole and tighten the nuts until they are snug. Do not overtighten the nuts, as this can damage the pipes.

Step 5: Reconnect the Water Supply

Turn on the water supply to the sink and check for leaks. If you see any leaks, tighten the nuts further until the leak stops. Allow the water to run for a few minutes to make sure that there are no more leaks.

Step 6: Clean Up

Once you have replaced the drain pipes, clean up any mess that you made. Wipe down the sink and the surrounding area with a damp cloth. Dispose of the old drain pipes and any other debris that you removed.

Tips:

If you are not comfortable replacing the drain pipes yourself, you can hire a plumber to do it for you.
Be sure to turn off the water supply before starting any work.
Use a flashlight to inspect the drain hole and clean out any debris.
Apply a bead of caulk around the base of the new drain pipes to prevent leaks.
Tighten the nuts until they are snug, but do not overtighten them.
Allow the water to run for a few minutes after you have replaced the drain pipes to check for leaks.